Method and apparatus for humidification and warming of air in a medical procedure
CA 2810047 C · Owner: Northgate Technologies Inc. · Inventors: Mantell, Robert A.; Manzie, Peter A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of humidifying a gas that includes supplying a gas to a surface of a humidification material that readily absorbs moisture and readily releases moisture when exposed to a dry environment and generating turbulence in the gas as it passes over the surface of the humidification material.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 29, 2001 and granted May 17, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.